Features
Technical: Multi-Code transmitters and receiver for garage door and gate openers that operate on a 300 MHZ frequency for ALL US gate and garage door receivers; 24 Volts and 3 connecting prongs for easy installation. Has 10 Dipswitches for coding.

Includes: Multi-Code Single Set includes one 1090 receiver and two 3089 transmitters (with 9 Volt battery), easy to follow schematics and installation instructions, a 1 year manufacturer's warranty and operating instructions.

The system is easy to install-- eventually. The problem is that the wiring involves small tabs on the unit-- you can't just wrap wires or anything like that. These are an odd size and I finally found something workable at Radio Shack (my 3rd stop). I'd sure rather pay $1 more and find the parts I needed IN the box.